Manhole catch basin sump



Jan. 10, 1933. E. J. EDWORDS MANHOLE CATCH BASIN SUMP Filed June 3, 19512 Sheets-Sheet INVENTOR.

BY W ATTORNEY.

Jan. 10, 1933. E. .1v EDWORDS MANHOLE CATCH BASIN SUMP 2 SheetsShee1Filed June 5, 1931 INVENTOR.

ATTORNEY.

Patented Jan. 10, 1933 UNITED STATES PATENT OFFICE ELDON J. EIDWORDS, FDETROIT, MICHIGAN, ASSIGNOR OF ONE-HALF TO ANDREW C. BAIRID, LEONARD B.PORTER, AND S. L. WESTERMAN, ALL OF DETROIT, MICHIGAN MANHOLE CATCHBASIN SUM]? Application filed June 3, 1931.

The object of my invention is to produce a catch basin sump that may beinserted within a street drainage manhole for receiving and retainingthe silt as may be deposited therein, and for removing the same from themanhole.

Another object is to produce a manhole catch basin sump provided withmeans for breaking the suction with the manhole walls when the sump isfilled with silt, for more readily allowingthe catch basin to be removedtherefrom. V

A further object is to produce a catch ,7 basin that can be handledentirely by derrick means and dumped automatically into a truck as thesump is lifted from the manhole.

A still further object is to produce a removable catch basin sump thatis simple in y construction, easily and efliciently operated and can bemanufactured at a very low cost. These several objects are attained inthe preferred form by the construction and ar rangement of parts morefully hereinafter set forth.

Similar parts on all drawings are marked by similar numerals or letters.

Fig. 1 is a side view of the catch basin sump showing the exterior viewshowing the general arrangement of the operating parts.

Fig. 2 is a side view of the same catch basin sump taken at right anglesto the view shown in Fig. 1, showing one of the side plungers used forbreaking the suction.

Fig. 3 is a top view of the catch basin showi ing the handle attachingmeans.

I will now describe more fully the detailed Serial No. 541,861.

construction of my device, referring to the drawings and the marksthereon.

In general my manhole catch basin sump comprises a tubular containerprovided with a trap door at the bottom and a lifting bail at the top,the tubular container walls being formed with side grooves havingplunger sections mounted therein, connected to the lifting bail andoperated therewith. v

The container -1 is made of heavy sheet metal, preferably formed aslightly tapered cylindrical section, smaller at the bottom than at thetop, and provided with two open, semi-cylindrical side grooves 2extended the entire length of the casing walls and positioneddiametrically opposite thereon. The top diameter of the container 1 isslightly smaller than the diameter of the cylindrical catch basin 3within which it is to be installed, said container being of a heightwhen supported on the catch basin bottom 4to extend to the waterdrainage level as indicated by the inlet and outlet pipes 5 and 6--shown in the Fig. 7 of the drawings. The container side walls areprovided with small drainage holes 8 at various positions therein toallow water to readily drain therefrom. At the bottom of the container 1are mounted suitable support legs 9, designed to raise the con- 80tainer walls clear from the catch basin bottom and allow a slightcirculation thereunder. Within the bottom end of the container 1 ismounted a trap door lO-, hingedly attached to a fixed wall 1l by a hinge12. A lock bar -13- is pivotally attached to the door -10 and positionedthereon to engage a lock notch -14 formed in the side of one of the support legs 9-, and is retained in its lock- 90 'ing position by aconnected spring member 15 mounted on the door wall. The trap door -10is capable of being opened as illustrated by the dotted lines in theFig. 2, when the lock bar 13 is disengaged, and provides means forinstantly discharging dirt and silt as may have been collected therein.At the top of the container 1, on the inside thereof, are mounted heavybail sockets 16, preferably fitted over the side 100 grooves 2 and inline therewith, said sockets being securely attached to the containerwalls, and carry slidably mounted therein a vertically positionedlifting bail -17. The lifting bail 17 is preferably made of a heavymetal bar of strong material and formed with the lower ends bent atright angles to the side sections -afor engaging the bail sockets 16when lifted to its upper position, and provides means for raising andlowering the receptacle and removing the silt therefrom, said liftingbail -17 is designed to slide several inches within the bail sockets 16before engaging therewith, when a lifting force is applied thereto. (ineither side of the bail -l7 is mounted a groove cap 18-, fixedlyconnected to said bail, and positioned thereon to cover the upper endsof the open container side grooves 2, and rest thereon when said bail isin its lower position, thus completely closing the groove end openings.Fixedly attached to each groove cap -18 is a plunger rod 19, positionedlengthwise of the respective side grooves along the groove axis,and areextendedthe full length ofthe container walls. Each of the plunger rods19 carries mounted at the bottom end a short plunger -20 fixedlyattached thereto, said plungers 20 being of a slightly smaller diameterthan the inclosing grooves 2, and free to slide therein, the plungers-20 being extended beyond the casing bottom when the connected liftingbail is in its lower position. The plungers 20 and attached rods -19-are retained in a central position within their respective grooves bynarrow loop bars -2lfixedly attached to the groove walls. The plungers-20 are automatically raised and lowered within the wall grooves 2 withthe movements of the connected lifting bail 17-.

In operating my device the sump may be readily installed within anydrainage catch basin 3 by means of a suitable lifting crane cable 22-connected to the bail as indicated in the Fig. 7 of the drawings, andthe catch basin sump may be readily inserted or removed in such catchbasin as desired, and when removed to a desired location the dirt andsilt may be easily discharged from the sump by releasing the lock bar13-- and allowing the trap door to swing clear from the container sidewalls.

When the sump is installed within any manhole catch basin 3-, and thelifting bail released, both the bail and attached plun ers 20 arelowered by their own weig t to a position as indicated in the Figs. 1and 2, but when a lifting force is applied to the bail --l7, both thebail and connected plungers are raised to a position as indicated inFig. 6, before any lifting power is applied to the container walls 1.The lifting of the plungers 20, vhen the sump is inclosed in silt andwater around the bottom, and which is always the condition, will operateto break the suction of the inclosing manhole walls, and allow the catchbasin sump to be readily removed therefrom. This suction, if not broken,is often sufliciently great to require a destroying force to be appliedto the sump before it can be removed, and often tearing the bailconnections therefrom. However, this suction is readily broken by theplunger movement.

While I have described the preferred construction of my catch basinsump, it is apparent that various modifications in both design anddetails may be readily made without departing from the spirit of myinvention, and I claim the device as herein shown and any modificationthereof that is substantially a substitution of parts therein shown.

Having fully described my catch basin sump, what I claim as my inventionand desire'to secure by Letters Patent is:

1. A catch basin sump adapted for inserting within a drainage catchbasin for receiving and removing dirt and silt therefrom and used incombination therewith, comprising a receptacle suitable for insertingwithin a drainage catch basin and practically filling the same below thedrainage water level, a lifting bail movably mounted on the receptaclewalls, movable stirring sections also mounted on the receptacle sidewalls near the bottom thereof, and means mounted thereon for operativelyconnecting said stirring sections with the said lifting bail for causingboth members to move simultaneously.

2. A catch basin sump adapted for inserting within a drainage catchbasin for receiving and removing dirt and silt therefrom and used incombination therewith, comprising a receptacle suitable for insertingwithin a catch basin and practically filling same below the drainagewater level, a lifting bail slidably mounted along the receptacle walls,plunger sections slidably mounted along the receptacle walls and soconnected to the lifting bail as to be actuated thereby for raising andlowering said plungers.

3. A catch basin sump adapted for inserting within a drainage catchbasin for receiving and removing the dirt and silt therefrom and used incombination therewith, comprising a receptacle suitable for insertingwithin a drainage catch basin and practically filling said catch basinbelow the drainage water level, said receptacle being formed withlongitudinal side grooves along the receptacle walls, a lifting bailslidably mounted on the receptacle walls, a plunger stirring meansslidably mounted in the receptacle wall grooves and connected to thelifting bail, said plun ers being positioned near the bottom of saidreceptacle and capable of being raised and lowered as the slidinglifting bail is raised and lowered, and a trap door mounted within thereceptacle bottom.

4:. A catch basin sump adapted for inserting Within a drainage catchbasin for receiving and removing the dirt and silt therefrom and used incombination therewith, comprising a receptacle suitable for insertingwithin said catch basin and practically filling same below the drainagewater level said receptacle being formed with longitudinal side Wallgrooves positioned diametrically opposite each other, a lifting bailslidably mounted along said wall grooves and capable of a slidingmovement therein in a direction lengthwise the receptacle axis, stirringplungers slidably mounted within the wall side grooves and fixedlyattached to the lifting bail and capable of being moved therewith, saidstirring plungers being positioned at the receptacle bottom, meansmounted on the receptacle walls for retaining said stirring plungers inposition within their respective grooves, a trap door hingedly mountedwithin the receptacle bottom and means mounted thereon for releasingsaid trap door from the receptacle walls.

In witness whereof I sign these specifications.

ELDON J. EDWORDS.

